“Here’s what I’m wagering that roughneck does not learn from the literature shipped with his drill bit this October: I’m betting he does not read about the recent study from the U.S. Centers for Disease Control that found dangerous levels of benzene in the urine of workers in the unconventional (aka fracking) oil and gas industry. Benzene is a proven human carcinogen.” Steingraber on the largest breast cancer charity teaming up with one of the largest oilfield service companies. Read the article